US2740696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization apparatus unit
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1951-03-30
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Granted: 1956-04-03
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Expires: 1971-03-30
Abstract
No abstract record available.
Inventors
- 👤 John P Longwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:36
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/10; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/18; C07C2521/00; C07C2521/06; C07C2521/08; C07C2527/00; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN APPARATUS OF THE CHARACTER DESCRIBED, THE COMBINATION OF A REMOVABLE HEAD MEMBER FOR A CYLINDRICAL REACTOR, A CAGE STRUCTURE SECURED TO SAID HEAD MEMBER AND REMOVABLE FROM THE REACTOR BY REMOVING SAID HEAD MEMBER, SAID CAGE STRUCTURE COMPRISING A PLURALITY OF PERFORATED PARALLEL PLATES ADAPTED TO DIVIDE SAID REACTOR INTO A SERIES OF REACTION ZONES WHEN INSTALLED THEREIN, A UNITARY ROTATABLE SHAFT PASSING THROUGH THE CENTER PORTION OF EACH OF SAID PLATES AND SAID HEAD, AND A PLURALITY OF OBLIQUELY DISPOSED PERFORATED AGITATING PLATES SECURED TO SAID SHAFT FOR AGITATING MATERIALS IN A PLURALITY OF SAID REACTION ZONES.
Claim 2
Dependent Claim
99 words
IN APPARATUS OF THE CHARACTER DESCRIBED, THE COMBINATION OF A REMOVABLE HEAD MEMBER FOR A CYLINDRICAL REACTOR, A CAGE STRUCTURE SECURED TO SAID HEAD MEMBER AND REMOVABLE FROM THE REACTOR BY REMOVING SAID HEAD MEMBER, SAID CAGE STRUCTURE COMPRISING A PLURALITY OF PERFORATED PARALLEL PLATES ADAPTED TO DIVIDE SAID REACTOR INTO A SERIES OF REACTION ZONES WHEN INSTALLED THEREIN, A UNITARY ROTATABLE SHAFT PASSING THROUGH THE CENTER PORTION OF EACH OF SAID PLATES AND SAID HEAD, AND A PLURALITY OF OBLIQUELY DISPOSED PERFORATED AGITATING PLATES SECURED TO SAID SHAFT FOR AGITATING MATERIALS IN A PLURALITY OF SAID REACTION ZONES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |